DSpace Repository

Does Presence of a Mid-Ocean Ridge Enhance Biomass and Biodiversity?

Show simple item record

dc.contributor.author Priede, Imants G. en
dc.contributor.author Bergstad, Odd Aksel en
dc.contributor.author Miller, Peter I. en
dc.contributor.author Vecchione, Michael en
dc.contributor.author Gebruk, Andrey en
dc.contributor.author Falkenhaug, Tone en
dc.contributor.author Billett, David S. M. en
dc.contributor.author Craig, Jessica en
dc.contributor.author Dale, Andrew C. en
dc.contributor.author Shields, Mark A. en
dc.contributor.author Tilstone, Gavin H. en
dc.contributor.author Sutton, Tracey T. en
dc.contributor.author Gooday, Andrew J. en
dc.contributor.author Inall, Mark E. en
dc.contributor.author Jones, Daniel O. B. en
dc.contributor.author Martinez-Vicente, Victor en
dc.contributor.author Menezes, Gui M. en
dc.contributor.author Niedzielski, Tomasz en
dc.contributor.author Sigurosson, Porsteinn en
dc.contributor.author Rothe, Nina en
dc.contributor.author Rogacheva, Antonina en
dc.contributor.author Alt, Claudia H. S. en
dc.contributor.author Brand, Timothy en
dc.contributor.author Abell, Richard en
dc.contributor.author Brierley, Andrew S. en
dc.contributor.author Cousins, Nicola J. en
dc.contributor.author Crockard, Deborah en
dc.contributor.author Hoelzel, A. Rus en
dc.contributor.author Hoines, Age en
dc.contributor.author Letessier, Tom B. en
dc.contributor.author Read, Jane F. en
dc.contributor.author Shimmield, Tracy en
dc.contributor.author Cox, Martin J. en
dc.contributor.author Galbraith, John K. en
dc.contributor.author Gordon, John D. M. en
dc.contributor.author Horton, Tammy en
dc.contributor.author Neat, Francis en
dc.contributor.author Lorance, Pascal en
dc.date.accessioned 2013-11-18T14:27:44Z
dc.date.available 2013-11-18T14:27:44Z
dc.date.issued 2013
dc.identifier.citation Priede, Imants G., Bergstad, Odd Aksel, Miller, Peter I., Vecchione, Michael, Gebruk, Andrey, Falkenhaug, Tone, Billett, David S. M., Craig, Jessica, Dale, Andrew C., Shields, Mark A., Tilstone, Gavin H., Sutton, Tracey T., Gooday, Andrew J., Inall, Mark E., Jones, Daniel O. B., Martinez-Vicente, Victor, Menezes, Gui M., Niedzielski, Tomasz, Sigurosson, Porsteinn, Rothe, Nina, Rogacheva, Antonina, Alt, Claudia H. S., Brand, Timothy, Abell, Richard, Brierley, Andrew S. et al. 2013. "<a href="https://repository.si.edu/handle/10088/21660">Does Presence of a Mid-Ocean Ridge Enhance Biomass and Biodiversity?</a>." <em>Plos One</em>. 8 (5):e61550. <a href="https://doi.org/10.1371/journal.pone.0061550">https://doi.org/10.1371/journal.pone.0061550</a> en
dc.identifier.issn 1932-6203
dc.identifier.uri http://hdl.handle.net/10088/21660
dc.description.abstract In contrast to generally sparse biological communities in open-ocean settings, seamounts and ridges are perceived as areas of elevated productivity and biodiversity capable of supporting commercial fisheries. We investigated the origin of this apparent biological enhancement over a segment of the North Mid-Atlantic Ridge (MAR) using sonar, corers, trawls, traps, and a remotely operated vehicle to survey habitat, biomass, and biodiversity. Satellite remote sensing provided information on flow patterns, thermal fronts, and primary production, while sediment traps measured export flux during 2007-2010. The MAR, 3,704,404 km 2 in area, accounts for 44.7% lower bathyal habitat (800-3500 m depth) in the North Atlantic and is dominated by fine soft sediment substrate (95% of area) on a series of flat terraces with intervening slopes either side of the ridge axis contributing to habitat heterogeneity. The MAR fauna comprises mainly species known from continental margins with no evidence of greater biodiversity. Primary production and export flux over the MAR were not enhanced compared with a nearby reference station over the Porcupine Abyssal Plain. Biomasses of benthic macrofauna and megafauna were similar to global averages at the same depths totalling an estimated 258.9 kt C over the entire lower bathyal north MAR. A hypothetical flat plain at 3500 m depth in place of the MAR would contain 85.6 kt C, implying an increase of 173.3 kt C attributable to the presence of the Ridge. This is approximately equal to 167 kt C of estimated pelagic biomass displaced by the volume of the MAR. There is no enhancement of biological productivity over the MAR; oceanic bathypelagic species are replaced by benthic fauna otherwise unable to survive in the mid ocean. We propose that globally sea floor elevation has no effect on deep sea biomass; pelagic plus benthic biomass is constant within a given surface productivity regime. en
dc.relation.ispartof Plos One en
dc.title Does Presence of a Mid-Ocean Ridge Enhance Biomass and Biodiversity? en
dc.type Journal Article en
dc.identifier.srbnumber 116664
dc.identifier.doi 10.1371/journal.pone.0061550
rft.jtitle Plos One
rft.volume 8
rft.issue 5
rft.spage e61550
dc.description.SIUnit NMNH en
dc.description.SIUnit NH-Invertebrate Zoology en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage e61550

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


My Account